<template>
  <div id="app">
    <Header></Header>
    <!-- 插座，用于切换内容 -->
    <router-view></router-view>
  </div>
</template>
<script>
import Header from '@/components/Header';
export default {
  components:{Header}
}
</script>
<style>
  *{
    padding: 0;
    margin: 0;
  }
  html,body,#app{
    width: 100%;
    height: 100%;
  }
</style>
